Air-cleansing device and ventilator



APPLICATION FILED 1AN.I4. 1921.

Patented May' L69 1922:A

2 SHEETS-SHEET I.

W. IVI. REED. AIR CLEANING DEVICE AND VENTILATOR.

APPL1cA`T1oN FILED 11111.14, 1921.

11116111611 May 16, 11922;

2 SHEETS-SHEET 2.

v Zweww www,

narran arrays r., or nouisvi arrasar.,

To all whom it may cof/wem.'

" Be it known that l, WILLIAM MAXWELL REED, a citizen of the vUnitedStates, residing at Louisville, State of Kentucky, have invented certainnew anduseful Improvements in Air-Cleansing Devices and ventilators;

and l do hereby declare the following to be rooms or chambers wherein itis desired to ventilate the Sameand maintain a circulation of airtherethrough, entirely free from dust, dirt or other foreign matter orimpurities.

- Primarily, the device' is adapted to be in- Y stalled in a drying orfinishing room comair therein is not constantly changed, the

same, within a short time, will become so damp and humid that it willnot take up any more moisture, and, consequently, the drying processwill come to a standstill, the

Y articles thereinbecoming more or less sticky, resulting in a lossofthe gloss and lusterre-v quired of the finished article. Furthermore,

the air will. become so saturated with turpentine as to make itpractically impossible for the employees to work in the room, and insome instances the ,turpentine and similar vapors will have an injuriouseffecten the l5 l through the drying process.

paintl and varnish on. the articles being p'u The principal object ofthisinvention is to provide a device of the character indicated thatwill overcome the various disadvantages above noted, whereby the air is'drawn into and 'forcedI through the drying room, thus maintaining acirculation of air at all times, wmeans being provided for previouslyextracting all dust/'and dirt from the 'air just priorv l l view,showing the manner of positioning the lll@ to its entrance into theroom.,

' .material rar 'leraren LELE KENTUCKY, ASSIGNOR TO LO'USVILLE 0FLOUISVILLE, KENTUCKY, A COR- Specication of Letters Patent. Patntdl Mlay16, 1922..

application led January it, i921. serial ivo. 437,182.

Anotherbject ofthe invention is the pro- I vision of an arrangement ofthis description which will be simple in operation and construction,cheap to manufacture, and one that `by reason of its unitaryconstruction can be adapted to and used in connection with theVentilating of'various plants, such as dynamo rooms, pu lic halls, andother 'places where a contin yous supply of clean fresh air is desired.vv

As hereinbefore stated, it is not only necessary that vthe air inthedrying room be renewed and a circulation maintained, buty it should alsobe cleansed of all foreign particles, such as dirt and the like,'and theinvention. further 4 contemplates a means whereby this may beaccomplished in a` simple manner, as the air is being drawn into theroom, the details of which arrangement will 7E be hereinafter more"fully described.

Generally stated, the invention comprises anair cleaning and suctiondevice, preferably positioned at an opening in lone wall of a dryingroom, or similar chamber, whereby air isvdrawn into the lroom and'causedto .circulate therethrough, passing out of ancomprises, preferably, acasing of square funnel shape, having its, big end closelypositioned inthe opening formed in one of the walls of the room, and its small endsupported upon uprights or standards, said' big end being inclosed by aframe supporting a series of narrow trays positioned between a pair ofspaced wire mesh screens 'through' which the air is drawn by a suctionfan mounted in the small orreduced end of the device..4 ln the spacebetween-the vscreens and trays is a lilling of steel wool or similarreviously saturated with oil, which, having an attraction for dirt andthe like, extracts uall dust and foreign particles from thev air passingtherethrough intothe drying room, theftrays merely acting as drip -pansto catch the excess oil that percolates down through the saturatedmaterial.

The preferred embodiment of the invention is illustrated in theaccompanying drawin s,. in whichv y ig. 1 1s a diagrammatic, fragmentarydevice with respect to the drying chamber.

gri

Fig. 2 is a rear vieviT of said device, showing the means of supportingthe inner end vo eration of the ventilatinoarrangement.

Upon referring to l of the drawings, it will bel noted that the largeend of the funnel-shaped casing is adjusted to and supported within theopening of the chamber 3, and the small end thereof, which projectsinwardly of the chamber, is supported upon standards 5, provided with asupporting base 6 adapted to rest upon the floor of said chamber. Thisis the preferred form of support, but obviously any other means ofbracing or supporting this inner end may be employed, to suit thevarious conditions and locations where it might be -found necessary tolocate the device with respect to the drying chamber.

'llhe air cleansing and Ventilating device per se, it will be noted uponreferring to the enlarged detailed views in Figs. 3 and 4C, is, ashereinbefore stated, of square funnel shape, the hollow casing 1preferably of sheet metal havingan enlarged square end and a reduced endportion terminating in an annular extension? in which is adapted to bemounted a fan 8, preferably of the electric type, and suitably connectedwith the necessary source of power for operating said fan, which fanprovides the means of constantly furnishing a fresh supply of air to thedrying chamber and causing the continuous circulation thereof througithe drying chamber.

ln order to extract all dirt and other'foreign matter from the airbefore entering the drying room and to insure the entrance of only cleanair thereinto, the 'enlarged or outer end of the casing 1 is suppliedwith a 1 frame 9 provided on its opposite side faces.

with a pair of spaced Wire mesh screens 10 and 11, the frame 9 being ofsufiicient depth to permit the desired spacing of the screens 10 and 11.`Within the inclosure formed by the frame 9 and screens 10 and 11 isconfined a filling or air filtering medium of steel Wool or similarmaterial 12,l which has previously been saturated with oil or the like,and through which material the air is drawn by the fan 8 during theoperationof the device,

aiiinity for dirt and other extraneous substances, the saturation oftheair filtering material withoil, and used in the particular arrangementhereinbefore described, provides a very simple and emcient means ofcleansing the air as it is drawn through the casing 1 and forced intothe drying room or chamber by the fan provided for the purpose. in orderto prevent the leakage of oil, which would obviously percolate downthrough the porous filtering material, 'there is provided a series oftransversely arranged pans or trays 13, which pans are supported withinthe frame 9 and also inclosed between the screens 10 and 11, as clearlyshown in Figs'. 3 and it. These trays will also prevent the settiingorpacking down of the nltering material as they form substantially amultiplicity of small compartments within the screens and frame.

in order to renew the filtering material when desired, and alsoreplenish the supply of oil when necessary, the outside screen 11 isdetachably secured to the frame 9 by a removable frame 14,' as clearlyshown in if ig. 4. This outside screen 11 is also made detachable forthe purpose of obtaining access to the pans or trays 13 and permittingthe removing therefrom, when necessary, the accumulated oil atpredetermined periods, which oil is obviously saturatedwith dirtandother substances extracted from the air .during its passage through thecleansing medium.

' Although the invention has been illustrated and described withparticular reference to drying rooms, chambers and the like, the same isnot to be so limited, as obviously the arrangement and particularapparatus is equally well adapted for the ventilation of various plants,dynamo rooms, public halls, and similar places where 'a continuouscirculation and supply of clean, fresh air is desired.

What I claim is:

1. A device of the character described comprising a-frame open at thefront and rear, a plurality of horizontally disposed partitionsextending transversely of the frame, a screen secured over each openface of said frame, anda filling of air-filtering material confinedwithin the frame upon said partitions and between said screens.

2. ln'an air Ventilating and circulating device,adapted for use inconnection with drying rooms, chambers and the like, the combinationwith a fan, of a tubular casing adapted to be positioned in an openingin said room .or chamber, a frame having transverse partitionspositioned Within the casing, a screen Secured to each side face of saidframe, and a filling of air filtering material confined within the frameupon said partitions and between said screens.

3: In an 'air ventilatingand circulating device, adapted for use inconnection with drying rooms, chambers and the like, the combinationwith a fan, of a tubular casing adapted to be positioned in an openingin said room or chamber, a frame positioned Within said casing, a screensecured to each side face of said frame, and a series of pans and afilling of air filtering material confined within the frame and betweensaid screens.

' 4. In an air filtering or circulating device, the combination with adrying room, cham ber or the like, of a funnel shaped tubular casingadapted to have its large end po.si'

tioned in an opening in the Wall of said room-or chamber, means forsupporting its opposite end, a frame positioned in said large end of thefunnel shaped casing, a screen secured to .each side face of said frame,a series of pans and a filling of oil saturated filtering materialconfined Within the frame and between said screens, and a fan mounted inthe small end of the funnel shaped casing for drawing the airtherethrough and through the filtering material and forcing the samethrough and out of the drying room or chamber.

5. A ventilator comprising a casing open at both ends, a fan-disposedWithin one end of the casing', a frame rsecured to the opposlte end ofthe casing, a plurality of horizontally arranged pans supported in the fframe, sheets of absorbent material saturated frame to hold theabsorbent sheets in place and to filter the air passing' therethrough.

6. A ventilator comprising a casing open at both ends, a frame mountedin one end of the casing, a plurality of horizontally f disposed panssupported in the frame, sheets of absorbent material saturated Withliquid supported in the pans, the latter serving to catch any liquidthat may flow from the absorbent sheets, and reticulated sheets securedto the opposite faces of the frame to lhold the absorbent sheets inplace land to filter the air passing therethrough.

\7. A device of the character described comprising a frame, a pluralityof horizontally disposed troughs supported in the `\frame, one above theother, Wads of absorbent material supported by the troughs and extendingfrom one end' of the latter to the other and also reaching from onetrough to the other, and reticulated sheets removably secured to theopposite faces of the frame.

In `testimony whereof I affix my signature.

WILLIAM MAXWELL REED.

